[recipes] Try to fix non-srcdir builds

[Matthias Clasen <matthiasc src gnome org>]

commit 8cc480f63e50a0c30404833e31612e20cb2cac02
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Dec 16 12:43:31 2016 -0500

    Try to fix non-srcdir builds
    
    There was a report of types.h not getting generated properly.
    This is a blind attempt at fixing it by relying on automatic
    variables instead of vpath.

 src/Makefile.am |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index c342044..d3aea58 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -126,12 +126,12 @@ resources-images.c: recipes-images.gresource.xml $(resource_image_files)
                --target=$@ --sourcedir=$(srcdir) --generate-source
 
 types.h: types.h.template gr-diet.h
-       $(AM_V_GEN) ($(GLIB_MKENUMS) --template types.h.template gr-diet.h ) > xgen-eh && \
+       $(AM_V_GEN) ($(GLIB_MKENUMS) --template $^ ) > xgen-eh && \
        cp xgen-eh $@ && \
        rm -f xgen-eh
 
 types.c: types.c.template gr-diet.h
-       $(AM_V_GEN) ($(GLIB_MKENUMS) --template types.c.template gr-diet.h ) > xgen-ec && \
+       $(AM_V_GEN) ($(GLIB_MKENUMS) --template $^ ) > xgen-ec && \
        cp xgen-ec $@ && \
        rm -f xgen-ec